As the rest of America frets over ISIS, I'd like to turn my attention to what could be emerging as a much more serious and significant threat to national security. And no, I'm not talking about Khorasan. I'm talking about obesity.

Much discussion fills the space in broadcast, print and online media about how parents need to model eating and exercise behaviors in order to help their obese children lose weight and get in shape. It is not quite that simple.

When institutional walls separating functions and ensuring balance of power are weak, players can concentrate and intensify their influence. This is now what we're seeing with the dairy lobby -- i.e. "big cheese".

A decade ago, getting food behemoths to even think about supporting healthier fare was a very tough task. Yet today we're seeing a new wave both in government and business toward "healthy living policies."

Jamie Oliver is on a mission to change America's diet. After airing a four-hour TV series aimed at improving school lunches, he got the British gov't to allocate $1 billion to revitalize their school lunches.

I worry that emphasizing weight rather than health will make life harder for all children, fat and thin, in our already appearance-obsessed culture. These days, kids start worrying about being fat as early as age five.